UPDATE (4/26/11): To everyone that has pointed out the hair color... Yes, i am aware that Finn has blonde hair, when this piece was done (FOR CARTOON NETWORK) it was not yet revealed the color of Finn's hair. In fact Pen Ward saw the piece and did not say that the hair color was incorrect, so maybe he wasn't aware of Finn's hair color either yet.
A friend of mine is working on the upcoming Adventure Time show for Cartoon Network and asked some folks to contribute to an art tribute thingy. This is mine...
Can't wait for this show to premier in March, it looks totally mathematical!
Adventure Time with Finn & Jake © cartoon network